摘要
the social accounting matrix is a fundamental base to analyze economic policies, measure the impact of external clashes and study the dynamics of markets and the structure of institutions. despite its proven usefulness, there is no official matrix for m谷xico, thus each researcher builds his/her own. a recent matrix was built and put at the disposal of experts, named social accounting matrix for m谷xico 2004 through the cross entropy method. the matrix obtained is consistent with the principles of national accounting.